🔥 remove fastcov

Makefile

@@ -32,10 +32,8 @@ all:
 	@echo "ChangeLog.md - generate ChangeLog file"
 	@echo "check - compile and execute test suite"
 	@echo "check-amalgamation - check whether sources have been amalgamated"
-	@echo "check-fast - compile and execute test suite (skip long-running tests)"
 	@echo "clean - remove built files"
 	@echo "coverage - create coverage information with lcov"
-	@echo "coverage-fast - create coverage information with fastcov"
 	@echo "cppcheck - analyze code with cppcheck"
 	@echo "cpplint - analyze code with cpplint"
 	@echo "clang_tidy - analyze code with Clang-Tidy"
@@ -65,10 +63,6 @@ json_unit:
 check:
 	$(MAKE) check -C test
 
-# run unit tests and skip expensive tests
-check-fast:
-	$(MAKE) check -C test TEST_PATTERN=""
-
 
 ##########################################################################
 # coverage
@@ -83,15 +77,6 @@ coverage:
 	cd build_coverage ; ninja lcov_html
 	open build_coverage/test/html/index.html
 
-coverage-fast:
-	rm -fr build_coverage
-	mkdir build_coverage
-	cd build_coverage ; CXX=g++-9 cmake .. -GNinja -DJSON_Coverage=ON -DJSON_MultipleHeaders=ON
-	cd build_coverage ; ninja
-	cd build_coverage ; ctest -j10
-	cd build_coverage ; ninja fastcov_html
-	open build_coverage/test/html/index.html
-
 ##########################################################################
 # documentation tests
 ##########################################################################

README.md

@@ -1355,7 +1355,6 @@ The library itself consists of a single header file licensed under the MIT licen
 - [**doctest**](https://github.com/onqtam/doctest) for the unit tests
 - [**Doozer**](https://doozer.io) for [continuous integration](https://doozer.io/nlohmann/json) on Linux (CentOS, Raspbian, Fedora)
 - [**Doxygen**](http://www.stack.nl/~dimitri/doxygen/) to generate [documentation](https://nlohmann.github.io/json/)
-- [**fastcov**](https://github.com/RPGillespie6/fastcov) to process coverage information
 - [**git-update-ghpages**](https://github.com/rstacruz/git-update-ghpages) to upload the documentation to gh-pages
 - [**GitHub Changelog Generator**](https://github.com/skywinder/github-changelog-generator) to generate the [ChangeLog](https://github.com/nlohmann/json/blob/develop/ChangeLog.md)
 - [**Google Benchmark**](https://github.com/google/benchmark) to implement the benchmarks

test/CMakeLists.txt

@@ -52,13 +52,6 @@ if(JSON_Coverage)
         COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept
         COMMENT "Generating HTML report test/html/index.html"
     )
-
-    add_custom_target(fastcov_html
-        COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/fastcov/fastcov.py --branch-coverage --lcov -o json.info --gcov ${GCOV_BIN} --compiler-directory ${CMAKE_BINARY_DIR} --source-files ${SOURCE_FILES}
-        COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/imapdl/filterbr.py json.info > json.info.noexcept
-        COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.noexcept
-        COMMENT "Generating HTML report test/html/index.html"
-    )
 endif()
 
 #############################################################################

test/thirdparty/fastcov/LICENSE

-The MIT License
-
-Copyright (c) 2018-2019 Bryan Gillespie
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.

test/thirdparty/fastcov/README.md

-# fastcov
-A massively parallel gcov wrapper for generating intermediate coverage formats *fast*
-
-The goal of fastcov is to generate code coverage intermediate formats *as fast as possible* (ideally < 1 second), even for large projects with hundreds of gcda objects. The intermediate formats may then be consumed by a report generator such as lcov's genhtml, or a dedicated front end such as coveralls. fastcov was originally designed to be a drop-in replacement for lcov (application coverage only, not kernel coverage).
-
-Currently the only intermediate formats supported are gcov json format and lcov info format. Adding support for other formats should require just a few lines of python to transform gcov json format to the desired shape.
-
-In order to achieve the massive speed gains, a few constraints apply:
-
-1. GCC version >= 9.0.0
-
-These versions of GCOV have support for JSON intermediate format as well as streaming report data straight to stdout
-
-2. Object files must be either be built:
-
-- Using absolute paths for all `-I` flags passed to the compiler
-- Invoking the compiler from the same root directory
-
-If you use CMake, you are almost certainly satisfying the second constraint (unless you care about `ExternalProject` coverage).
-
-## Sample Usage:
-```bash
-$ cd build_dir
-$ fastcov.py --zerocounters
-$ <run unit tests>
-$ fastcov.py --exclude /usr/include --lcov -o report.info
-$ genhtml -o code_coverage report.info
-```
-
-## Legacy fastcov
-
-It is possible to reap most of the benefits of fastcov for GCC version < 9.0.0 and >= 7.1.0. However, there will be a *potential* header file loss of correctness.
-
-`fastcov_legacy.py` can be used with pre GCC-9 down to GCC 7.1.0 but with a few penalties due to gcov limitations. This is because running gcov in parallel generates .gcov header reports in parallel which overwrite each other. This isn't a problem unless your header files have actual logic (i.e. header only library) that you want to measure coverage for. Use the `-F` flag to specify which gcda files should not be run in parallel in order to capture accurate header file data just for those. I don't plan on supporting `fastcov_legacy.py` aside from basic bug fixes.
-
-## Benchmarks
-
-Anecdotal testing on my own projects indicate that fastcov is over 100x faster than lcov and over 30x faster than gcovr:
-
-Project Size: ~250 .gcda, ~500 .gcov generated by gcov
-
-Time to process all gcda and parse all gcov:
-
-- fastcov: ~700ms
-- lcov:    ~90s
-- gcovr:   ~30s